*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --orange: #ff9900; --orange-dark: #e88a00; --dark: #232f3e; --gray: #5a6b7b;
  --light: #f7f8fa; --border: #e3e6e8; --radius: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08); --shadow-lg: 0 6px 24px rgba(0,0,0,0.12);
  --bg: #ffffff; --bg-alt: #f7f8fa; --text: #232f3e; --text-muted: #5a6b7b;
  --card-bg: #ffffff; --card-border: #e3e6e8; --header-bg: #232f3e;
  --header-text: #dddddd; --footer-bg: #1a2533; --footer-text: #aaaaaa;
}
body.dark {
  --bg: #1a1f2e; --bg-alt: #151927; --text: #e0e4ea; --text-muted: #9aa5b5;
  --card-bg: #232a3d; --card-border: #333b50; --header-bg: #111521;
  --header-text: #c0c8d4; --footer-bg: #111521; --footer-text: #7a8294;
  --shadow: 0 2px 8px rgba(0,0,0,0.3); --shadow-lg: 0 6px 24px rgba(0,0,0,0.4);
}
body { font-family: 'Inter', -apple-system, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; transition: background 0.3s, color 0.3s; }
a { color: var(--orange-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 720px; }
.site-header { background: var(--header-bg); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 4px rgba(0,0,0,0.15); transition: background 0.3s; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { color: #fff; font-size: 1.3rem; font-weight: 800; text-decoration: none; }
.main-nav { display: flex; gap: 24px; }
.main-nav a { color: var(--header-text); font-weight: 500; font-size: 0.95rem; }
.main-nav a:hover { color: var(--orange); text-decoration: none; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
.theme-toggle { background: none; border: 2px solid rgba(255,255,255,0.2); border-radius: 50%; width: 38px; height: 38px; font-size: 1.1rem; cursor: pointer; transition: border-color 0.2s, transform 0.2s; line-height: 1; padding: 0; }
.theme-toggle:hover { border-color: var(--orange); transform: scale(1.1); }
.hero { background: linear-gradient(135deg, var(--dark) 0%, #1a2533 100%); color: #fff; text-align: center; padding: 80px 20px; }
.hero h1 { font-size: 2.6rem; font-weight: 800; margin-bottom: 16px; }
.hero p { font-size: 1.2rem; opacity: 0.85; max-width: 560px; margin: 0 auto 32px; }
.search-bar { display: flex; gap: 10px; justify-content: center; max-width: 560px; margin: 0 auto 20px; }
.search-bar input { flex: 1; padding: 14px 18px; border: none; border-radius: 10px; font-size: 1rem; background: rgba(255,255,255,0.95); color: #232f3e; }
.search-bar input::placeholder { color: #888; }
.search-bar input:focus { outline: 2px solid var(--orange); }
.search-status { color: rgba(255,255,255,0.85); font-size: 0.95rem; margin-bottom: 16px; }
.browse-btn { margin-top: 8px; }
.btn { display: inline-block; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 1rem; cursor: pointer; border: none; transition: transform 0.15s, box-shadow 0.15s; }
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-dark); box-shadow: 0 4px 12px rgba(255,153,0,0.4); }
.btn-amazon { background: var(--orange); color: #fff; padding: 10px 20px; border-radius: 8px; font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 6px; }
.btn-amazon:hover { background: var(--orange-dark); text-decoration: none; }
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); transition: background 0.3s; }
.section-title { font-size: 2rem; font-weight: 800; text-align: center; margin-bottom: 40px; }
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.category-card { background: var(--card-bg); border: 2px solid var(--card-border); border-radius: var(--radius); padding: 28px 16px; text-align: center; font-size: 1.1rem; font-weight: 600; color: var(--text); cursor: pointer; transition: border-color 0.2s, box-shadow 0.2s, background 0.2s; }
.category-card:hover { border-color: var(--orange); box-shadow: var(--shadow); text-decoration: none; }
.review-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.review-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: box-shadow 0.2s, transform 0.2s, background 0.3s, border-color 0.3s; display: flex; flex-direction: column; cursor: pointer; }
.review-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.review-card .card-img { width: 100%; height: 200px; object-fit: cover; background: var(--bg-alt); }
.card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.card-category { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--orange-dark); margin-bottom: 8px; }
.card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.stars { color: var(--orange); font-size: 1.1rem; margin-bottom: 10px; letter-spacing: 2px; }
.card-excerpt { color: var(--text-muted); font-size: 0.92rem; flex: 1; margin-bottom: 16px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-date { font-size: 0.8rem; color: var(--text-muted); }
.no-results { text-align: center; color: var(--text-muted); font-size: 1.1rem; padding: 40px 0; }
.back-link { display: inline-block; margin-bottom: 24px; font-weight: 600; color: var(--orange-dark); }
.review-detail-img { width: 100%; max-height: 400px; object-fit: cover; border-radius: var(--radius); margin-bottom: 24px; }
.review-detail-category { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--orange-dark); margin-bottom: 8px; }
.review-detail-title { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.review-detail-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.review-detail-meta .stars { font-size: 1.3rem; margin: 0; }
.review-detail-date { color: var(--text-muted); font-size: 0.9rem; }
.review-detail-body { font-size: 1.1rem; line-height: 1.8; color: var(--text); margin-bottom: 32px; }
.review-detail-body p { margin-bottom: 16px; }
.review-detail-cta { display: flex; gap: 12px; align-items: center; padding: 24px; background: var(--bg-alt); border-radius: var(--radius); border: 1px solid var(--card-border); flex-wrap: wrap; }
.review-detail-cta .btn-amazon { font-size: 1rem; padding: 14px 28px; }
.review-detail-cta .cta-text { color: var(--text-muted); font-size: 0.9rem; }
.newsletter { background: var(--header-bg); color: #fff; text-align: center; padding: 56px 20px; transition: background 0.3s; }
.newsletter h2 { font-size: 1.8rem; margin-bottom: 8px; }
.newsletter p { opacity: 0.8; margin-bottom: 24px; }
.newsletter form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; max-width: 440px; margin: 0 auto; }
.newsletter input { flex: 1; min-width: 200px; padding: 12px 16px; border: none; border-radius: 8px; font-size: 1rem; }
.lead { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 32px; }
.narrow h3 { margin-top: 28px; margin-bottom: 12px; font-size: 1.3rem; }
.narrow ul { padding-left: 20px; margin-bottom: 16px; }
.narrow li { margin-bottom: 8px; }
.site-footer { background: var(--footer-bg); color: var(--footer-text); text-align: center; padding: 40px 20px; transition: background 0.3s; }
.site-footer .disclaimer { font-size: 0.82rem; opacity: 0.7; margin-top: 8px; }
.site-footer .copyright { font-size: 0.82rem; margin-top: 12px; }
@media (max-width: 768px) {
  .hero h1 { font-size: 1.8rem; } .hero p { font-size: 1rem; } .menu-toggle { display: block; }
  .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--header-bg); flex-direction: column; padding: 16px 20px; gap: 16px; }
  .main-nav.open { display: flex; } .section-title { font-size: 1.5rem; } .review-detail-title { font-size: 1.5rem; }
  .search-bar { flex-direction: column; } .search-bar input { width: 100%; }
}